All Questions

-1
votes
0answers
25 views

Nodes to a whitelist [duplicate]

i have questions to the whitelist of the blockchain. Is each full node per default on a whitelist? Which criteria must be fulfilled for a node to be placed on the whitelist? Who defined the whitelist? ...
0
votes
1answer
56 views

Generating a BCH address offline

To generate offline BTC addresses, I use the bitcoin-core app from bitcoincore.org. What is the BCH equivalent of this? Is it the bitcoin-unlimited app?
0
votes
1answer
11 views

Dealing with inactive channels

What is the best practice to deal with inactive channels? Do they have an impact on my node's 'reputation' somehow, should I close them after a few days of being inactive? What happens if channel ...
-1
votes
0answers
14 views

How to save HTML page written with javascript [migrated]

I need a tool or method to save HTML page written with javascript. I know the standard save method with right click and view page source, also the method with right click -> save as but they save the ...
0
votes
0answers
29 views

Why doesn't Bitcoin-core Wallet app transmit payment?

Why doesn't Bitcoin-core Wallet app transmit payment? Bitcoin-core Wallet app no delivery transaction. From the 18th of March to the date Bitcoin-core Wallet app retains my satoshis with the message ...
1
vote
0answers
36 views

How difficult is it to confirm a Bitcoin Block?

If I have done the math right to come up with this hash, to confirm a true block and this is a confirmed hash. You can look it up here Bitcoin Block #570240 ...
0
votes
0answers
18 views

How to create a node to a private blockchain using Bitcoin core

Is it possible to create to connect to a private bitcoin chain with bitcoin core? I created a private bitcoin chain through regtest on one vm. Now I want to make a full node copy of it on a separate ...
0
votes
0answers
32 views

How cryptocurrency miners use pools to find blocks programmatically? [on hold]

I am a beginner to the world of cryptocurrencies and I wonder how to develop miner like ccminer that uses GPUs to find blocks, how does it do it and what does it involve? Are there any SDKs that can ...
0
votes
1answer
20 views

How many non-web wallets discard private-keys? or How common are non-deterministic wallets?

I'm concerned about non-web wallets that discard private keys after use. Web wallets - share addresses between users, so the user can consider all private keys to be immediately discarded. ...
1
vote
1answer
40 views

Musig/Schnorr Question

I am studying the MuSig protocol and am having trouble grasping certain segments. This is my understanding thus far: In current Bitcoin CHECKMULTISIG format, the size of the signature grows linearly ...
1
vote
1answer
32 views

How do hodl invoices work?

On March 15th, 2019 hodl invoices where added to lnd via this pull request. Hodl invoices allow a recipient to accept or deny a transaction at their discretion, a very useful feature. However, how ...
0
votes
1answer
12 views

What is the cause of “version handshake timeout”?

This keeps happening over and over and results in me disconnecting from peers.
0
votes
0answers
13 views

transfer cryptocurrency with api

I need a wallet that have api for currency transfer like block.io api. But because block.io only supports 3 currencies, it is not suitable for my project There is another wallet for my work? (Only ...
0
votes
0answers
25 views

Generate BTC transaction that can't be replayed on forks

Transaction is non-segwit, P2PKH. I don't want to touch the same addresses on forks yet, but also don't want anybody to be able to replay my BTC transaction on any of the forks' blockchains. What can ...
0
votes
0answers
15 views

secure Multi-Party Computation (sMPC) in Enigma?

In Enigma whitepaper (>> Link to the Enigma paper <<), in section 5.1 "Overview of secure multi-party computation", page 4, explains how to divide a secret s into multiple shares, using ...
1
vote
1answer
63 views

BTC and BCH receiving addresses

UPDATE ONE: It seems I might have answered my own question. I took an address generated on bitcoin-core 0.17.1 to a BCH ATM and it would not get accepted as a valid address. I then took the same ...
0
votes
1answer
27 views

How can get balance for btc/bch address and block?

How can get balance for btc/bch address and block ? Similar to web3.eth.getBalance for Ethereum
0
votes
1answer
26 views

Are addresses which start with 3 multisig addresses?

I've just downloaded bitcoin-core 0.17.1 and it seems all the new receiving addresses I create start with 3 instead of 1. I always thought addresses which start with 3 were multisig addresses. ...
1
vote
0answers
33 views

How to sign bitcoin raw transactions with Python offline

I have a raw bitcoin transaction created using createrawtransaction unsigned_tx = "...
0
votes
0answers
14 views

Bitcoin Gold estimatefee public API

I am looking for a public API to serve current estimatefee for Bitcoin Gold. I am using such public API for BTC from this service: https://bitcoinfees.earn.com/api/v1/fees/recommended which works ...
0
votes
0answers
33 views

Create a multi user web wallet using bitcoind RPC call

I just a beginner in bitcoin technology.I planning to create a multi user bitcoin web wallet using a VPS full node setup(Not use minig). I read the RPC documentation and found something for archiving ...
0
votes
1answer
18 views

Import wallet or transfer coins

Say if I am changing from CoPay to Bitcoin Core, is it recommended that I try and import my CoPay's private keys to Core, or just send the coins over to my Core account.
0
votes
1answer
10 views

How to differentiate between sending and receiving address in blockcypher api result?

I am using BlockCypher's API to get a list of transactions for a bitcoin address. I need to maintain a record of IN and OUT transactions from this address with time and transaction hash. However, I am ...
0
votes
0answers
23 views

Generate Monero Public/Private Key using ONLY PHP

I'm trying to generate a Monero Public Key and Private key for a webstore using only PHP. I see Monero javascript and python code, however, I do not see PHP only code. This is my attempt with PHP ...
0
votes
1answer
18 views

how to place a bitforex api buy order

I have read the documentation for BitForex on placing a buy order here: https://github.com/bitforexapi/API_Doc_en/wiki/Order Then after understanding that, I read the API Call Description ...
0
votes
0answers
16 views

So there is not way to get my bitcoins back from a scammer? [duplicate]

I made a purchase of 200USD in BTC, and i never receive anything from the seller there is not way to take my btc back?
1
vote
1answer
18 views

How to get my c-lightning node's private key?

lightning-cli getinfo outputs my node's id, which is its public key. How can I get its underlying private key?
0
votes
0answers
20 views

Unconfirmed Transactions, with low Fees [duplicate]

Is there any way to estimate when a transaction or set of transactions from the same party will be mined? For example, say the company paid a small fee for transactions. How would I estimate the time ...
0
votes
0answers
13 views

Sent BCH accidently to Bitcoin address [duplicate]

i have sent 0.29379525 Bitcoin Cash (BCH) accidentally to my BTC wallet. and i have received nothing. Can you please help me? here is the transaction id. ...
1
vote
1answer
33 views

How to model randomness in validators selection in PoS?

I searched a lot here and on the Internet to figure how how randomness selection of validators in PoS works? I understand it is a random selection based on fraction of stake a validator has, similar ...
0
votes
1answer
27 views

Link my bitcoin address with multiple wallets

I created a CoinBase bitcoin wallet address, can I share this address with Electrum desktop software instead of having different addresses and paying the transfer fees. Or is there another wallet like ...
0
votes
2answers
30 views

Address not valid when withdrawing money from Binance

I want to withdraw the Vibrate crypto from binance. When I enter the BTC wallet address which I took from my account from coinbase, binance says invalid address. Am I missing something here?
1
vote
1answer
20 views

Proof-of-Stake: What if a bad enactor is chosen by random?

My understanding of proof-of-stake is the following: The node that mines the next block is chosen, randomly in proportion to the amount of nodes they have in the network (ex. person who who owns 5% ...
0
votes
0answers
14 views

transaction issue bitcoin core

I sent BTC, bitcoin core says the transaction was made, the money was written off from the account and it is not visible in blockchain explorer. What's the problem, can you tell me?
0
votes
0answers
16 views

What does “mix hash” mean in the genesis.json?

Whenever I deployed my Ethereum test net, I usually typed 'genesis.json' from the example code. In this point, all I want to know is the difference between difficulty and mix hash. I know that ...
-3
votes
0answers
31 views

Hard forking Bitcoin: how to guide?

I've been looking around for the early commits to hard forks of Bitcoin (BCash, Bitcoin Gold etc) but so far haven't had much success in identifying the the minimum necessary to hard fork Bitcoin. ...
0
votes
0answers
18 views

Message: “this payment has not yet been transmitted”

My smartphone wallet samsung android with application bitcoin core version wallet 7.04 does not get paid. Message: "this payment has not yet been transmitted". from March 18 at 18:56 (NYC) I have ...
0
votes
1answer
9 views

Cryptofinance plugin pulling wrong data for KNC

Seems there are two "KNC" tags on Coinmarketcap... Kyber Network and KingN Coin. Any idea how I should pull the Kyber Network data using this plugin? Right now it's pulling the KingN Coin info...
0
votes
1answer
20 views

Data for time a transaction spent in a pool before it got added to a block

Is it possible to collect data for when an transaction was added to the pool to when it was added to the block?
4
votes
1answer
67 views

Warning: Unknown block versions are being mined! Unknown rules may be active

Best regards. What's going on internally when I get this warning. Warning: Unknown block versions are being mined! Unknown rules may be active Bitcoin Core version v0.17.1 (64-bit) Thank you
0
votes
1answer
17 views

Does bitcoind re-index or reverify downloaded blocks upon startup?

If so is there a way to prevent this from happening?
0
votes
0answers
13 views

Bitcoin node goes from 8 peers on startup down to 1 peer and sometimes 0 peers

I'm not sure what is going on. I'm getting the following errors in my log file: connect() to [ip] failed: connection refused (111) which makes sense since I have not configured my router to accept ...
0
votes
1answer
21 views

P2SH to LTC address with M

Are there anyone know how to convert P2SH address (like 34A5PyCvPJKYtHmj9jmKhGzBBwpGuAkZog) to MANDhrctLRAygo3dFckfWvEaWeQizSwWNK? I tried to decode with Base58Check, then removed 05 and added 032, ...
1
vote
1answer
35 views

Submitt transaction with custome fee

I like to doing to submit every new transaction with user specific fee. I don't see any valid documentation for achieve it using RPC call. Give any suggestion. Thankyou
1
vote
1answer
33 views

Is it possible to store data privately into the bitcoin blockchain?

Given that Bitcoin is a public and permissionless blockchain, does this mean that any data stored in it will be free for anyone to see? Is it possible to store documents such as screenshots etc.?
3
votes
1answer
97 views

Maximum number of inputs per transaction

In theory, what is the maximum number of inputs per transaction? Is it defined primarily by the maximum number we can store on the 9 byte varint? How big of a number can be stored on 9 bytes? Would ...
0
votes
1answer
19 views

Please tell me the procedure for installing bitcoin full node in CUI on CentOS

I am really sorry, please teach. Please tell me the procedure for installing bitcoin full node in CUI on CentOS. Currently I installed using the following procedure, but I got an error in RPC ...
0
votes
1answer
40 views

How to sweep a bc1… bitcoin segwit address using a mobile app?

I have a bitcoin private key with some money on the segwit bc1 address, but when I try to sweep this private key using mycellium android wallet, it shows up as a 3... address. What other mobile app ...
0
votes
1answer
35 views

Which parts of a bitcoin script are embedded in the blockchain?

I assume the scriptPubKey is contained in a UTXO, and therefore embedded in the blockchain. Since, this is the script used to unlock the input. Is a scriptSig also embedded in the blockchain? Or is ...
0
votes
1answer
39 views

Bitcoins didn't arrived

3-4 days ago, I transferred bitcoins from Virwox to my Electrum wallet, but this bitcoins didn't arrived, what can i do? 1JPSVx7hjcu7rR2Vr6nyz7z8mok3yryGZ

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